From what I remember, the North Forest and Small Teeth Pass were
BWP expert installs so they were the parts that replaced rather than patched. Some of the non expert components were left in the tactics part of the
BWP install (Bodhi, streamlined trolls and the like). Again, this was a while ago so I may have forgotten somethings. I just picked the components I wanted and installed before the fixpack.
This is what I did but it was well over a year ago.
// Log of Currently Installed
WeiDU Mods
// The top of the file is the 'oldest' mod
// ~TP2_File~ #language_number #component_number // [Subcomponent Name -> ] Component Name [ : Version]
~SETUP-TACTICS.TP2~ #0 #31 // Mike Barnes' Improved Small Teeth Pass
~SETUP-TACTICS.TP2~ #0 #32 // Mike Barnes' Improved North Forest
~SETUP-TACTICS.TP2~ #0 #33 // Mike Barnes' Marching Mountains
~SETUP-TACTICS.TP2~ #0 #4 // Improved Bodhi
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #0 //
BG2 Fixpack - Core Fixes
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #1 //
BG2 Fixpack - Game Text Update
...and so on but if you are installing Ascension the same way, you may have to be a little more strategic if that mod is overwriting as well.
Good luck Lol!